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xiaoxiaozhaomingbi / Kinetic energy pen

xiaoxiaozhaomingbi
xiaoxiaozhaomingbi

The case of the design suitable for viewing PPT or low light for written record important notes

University

Chengdu University of Technology

Chengdu University of Technology
Chengdu, China

University

Chengdu University of Technology

Chengdu University of Technology
Chengdu, China

Design

Chengdu University of Technology

Chengdu University of Technology
Chengdu, China

The we watched ppt usually turn off the lights in a dark, dark, dark under a pen lighting for our writing, recording important notes